Pelvis and Hip Flashcards
(44 cards)
Anterior Iliac Superior Spine
Iliac Crests
Ischial Tuberosities
Pubic Symphysis
All Meet at the Pelvis
Bones of the Pelvis
Sacrum
Coccyx
Sacrum
Provides Stability
Coccyx
End of Spine
Bones of the Hip Joint
Acetabulum
Femur
Motions of the Hip
Abduction Adduction Flexion Extension Medial Hip Rotation Lateral Hip Rotation
Bones of the Femur
Head Neck Greater Trochanter Lesser Trochanter Femoral Condyles (Distal) Patella
Femur
Longest and Heaviest Bone in the Body.
Hip Joint
Stable
Strong
Ball and Socket
Components of Hip
Femoral Head
Acetabulum
Acetabulum Labrum
Bursa
Joint Capsule
Spiral Orientation
Tightens with Extension
Lined with Synovial Membrane
What provides hip stability?
Ligaments
Muscles
Labrum
Anterior Ligaments
Iliofemoral
Pubofemoral
Posterior Ligaments
Ischofemoral
Iliofemoral Ligament
“Y” ligament
Runs: Anterior and Superior
Role: Limit Hyperextension of Hip
Acetabular Labrum
Helps Support the Hip.
Bursa
Cushioning Sac
Compression Area
Synovial Fluid
Shock Absorption
Ischiofemoral
Weakest
Runs: Posterior and Inferior
Role: Limit Internal Rotation
Ligentum Teres
Head of the Femur Weak Runs: Head of Femur to Acetabulum Medial and Lateral Rotators of the Hip Add Stability Blood Supply
Femur Components
120-125 deg - Normal Inclination
Larger Angle at Birth, Decreases with Weight Bearing
Coxa Vara
Smaller Angle.
Increase Chance of Neck Fracture
Coxa Valga
Larger Angle.
Decreases Hip Stability.
Decreases Mechanical Effectiveness of Abductors.
Early Arthritic Changes Lead to Grinding.
Children more than Adults
Weight Bearing
Pubofemoral
Runs: Anterior and Inferior
Role: Limit Abduction of Hip